Jacking control method, system and device for tower crane, tower crane
A technology of a tower crane and a control device is applied in the field of jacking control of tower cranes and over-tilt detection of tower cranes, which can solve the problems of low accuracy of jacking and over-tilt detection and control, and improve anti-interference ability and reliability. stability, simplify circuit design, and avoid the effect of system misjudgment
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0042] figure 2 It is a schematic structural diagram of a jacking control system of a tower crane provided in Embodiment 1 of the present invention, the control system includes at least two detection devices 21, a jacking control device 22 of a tower crane, and a protection device 23, wherein each detection device 21 are arranged on different main chords of the jacking frame respectively, and the control device 22 is connected with the signal of the detection device 21 and the protection device 23, wherein:
[0043] Each detection device 21 detects the jacking distance signal of the main chord where it is located during the jacking process of the tower crane, and sends the detected jacking distance signal to the control device 22;
[0044] The control device 22 judges whether the difference between the two jacking distance signals is greater than the set first threshold according to the jacking distance signals sent by each detection device 21. When at least one of the diffe...
Embodiment 2
[0062] image 3 In the second embodiment of the invention, the schematic flow chart of the jacking control method based on the above-mentioned jacking over-tilt detection and control system mainly includes the following steps:
[0063] S301: Receive a jacking distance signal of the main chord where the tower crane is during the jacking process detected by at least two detection devices respectively arranged on different main chords of the jacking sleeve.
[0064] Setting the detection device at the inner lower end of the main chord of the corresponding sheath can ensure that the detection device can accurately obtain the signal of the jacking distance of the main chord, and improve the stability of the system.
[0065] In addition, detection devices may be provided on each main chord, or detection devices may be provided on a part of the main chords. Among them, in order to ensure the accuracy of the jacking over-tilt detection control and save the cost of detection, detectio...
Embodiment 3
[0083] Figure 5 It is a schematic structural diagram of a jacking control device for a tower crane in Embodiment 3 of the present invention, and the device includes:
[0084] The receiving device 51 is used to receive the jacking distance signal of the main chord where it is located during the jacking process of the tower crane detected by at least two detection devices respectively arranged on different main chords of the jacking sleeve ;
[0085] judging device 52, configured to judge whether the difference between two jacking distance signals is greater than a set first threshold according to the jacking distance signals sent by the detection devices;
[0086] The sending device 53 is configured to send a control instruction to the protection device when at least one of the differences between any pair of the jacking distance signals is greater than a set first threshold.
[0087] It can be seen from the above that at least two main chords are respectively provided with ...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More